If Obito Uchiha hoped to monitor Karn's movements from the Kamui Dimension, he was dreaming.
Especially after learning that Kakashi had been attacked and his Sharingan stolen, Karn received all his messages through the miniature surveillance robots in the Kamui Dimension; Obito Uchiha could rack his brains forever and still never guess what those few rocklike objects in the Kamui Dimension did.
In the end, Obito Uchiha received another holographic projection of Rin Nohara. Frantic and unable to find any other way, he finally handed over the Tailed Beast he had seized from Roshi.
Back when he had sealed this Tailed Beast, Obito Uchiha had nearly had half his body smashed apart. He had the strength to kill a Tailed Beast, but sealing one was somewhat difficult for him. It would have been much easier with the Rinnegan, but once he took the Rinnegan from Nagato, he would have to step out of the shadows and into the open, then become an enemy of the Five Great Nations.
Even the vessel for sealing the Tailed Beast had been provided to Obito Uchiha by Karn. It was made of metal Karn had created with his munching ability, with chakra-sealing formulas inscribed on it, enough to seal a Tailed Beast for a long time.
After receiving the message transmitted by the surveillance robot, Karn retrieved the vessel containing the sealed Tailed Beast with his ocular technique.
"No matter how unwilling that idiot is, he still has to obediently collect Tailed Beasts. But next, I'll have to persuade Rin to give Kenji another little push. The Four-Tails? Not bad."
Rin Nohara had now arrived in the Capital of the Land of Fire. She would help Nonō establish the Land of Fire's medical system in the future. Rin Nohara had already met Nonō, and